Johnson County Pwsd 2, MO
Exceeded the action level in the past
Latest 90th-percentile lead: 1.87 ppb (monitoring period 2024-2024). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
Who runs the water here
Johnson County Pwsd 2 serves about 12,490 people through 4,669 service connections, which makes it a large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Johnson County, Missouri. EPA system ID: MO1024310; phone on file: 816-732-6658. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
Against the period ending 2024 (1.91 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Johnson County Pwsd 2 is 21.8 ppb across 6 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 1.87 ppb |
| 2024 | 1.91 ppb |
| 2023 | 21.8 ppb over 15 |
| 2020 | 4.14 ppb |
| 2019 | 7.5 ppb |
| 2016 | 4.52 ppb |
Against other Missouri systems
Of the 1,674 Missouri systems with a lead result, the median latest reading is 1.04 ppb; 2 are over 15 ppb right now and 74 have gone over at some point. Johnson County Pwsd 2's 1.87 ppb sits at the 68th percentile in Missouri and the 68th nationally (higher means more lead).
Other water systems in Johnson County
13 other systems share Johnson County; 1 of them has a higher latest lead result than Johnson County Pwsd 2. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Mo American Warrensburg | 18,500 | 0 (not detected) |
| Whiteman Air Base | 10,106 | 0 (not detected) |
| Johnson County Pwsd 3 | 5,317 | 0 (not detected) |
| Johnson County Pwsd 1 | 4,240 | 1.08 ppb |
| Knob Noster Pws | 2,863 | 2.25 ppb |
| Holden Pws | 2,683 | 0 (not detected) |
| Leeton Pws | 601 | 1.73 ppb |
| Chilhowee Pws | 382 | 0.87 ppb |
| Kingsville Pws | 345 | 0.52 ppb |
| Mo American East Warrensburg | 335 | 0 (not detected) |
Next steps for Holden, MO
Test your own tap with a certified lab first-draw sample; Holden, MO may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Johnson County Pwsd 2 whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. The lead result guide covers how utilities pick the homes they sample. Why an old exceedance still matters: over the limit before, under it now.